Final answer:
A binding steering wheel during a PM inspection could be due to several issues such as excessive clearance in the steering gear, worn kingpin bushings, worn universal joints in the steering shaft, or worn tie rod ends. Accurate diagnosis and prompt repair by a qualified technician are important for safe vehicle operation.
Step-by-step explanation:
During a PM (Preventative Maintenance) inspection, if a steering wheel binds when turned, there could be several causes. Some potential reasons for this condition include:
- Excessive sector gear to ball nut clearance in the steering gear, which can create play and binding sensations when turning the wheel
- Worn kingpin bushings, which can cause the steering to bind due to misalignment or increased friction
- Worn steering shaft universal joints, which can lead to a lack of smooth articulation and cause binding
- Worn tie rod ends, which can result in uneven turning and binding because of the loose connections in the steering linkage
The cause of the binding steering wheel needs to be accurately diagnosed by checking each component for wear or damage. Since the steering system is critical for vehicle safety, any issues should be addressed promptly by a qualified technician.